Resource Type
Collection
Serial/Series Title
2000 Census County Subdivision Block Map
54
Digital US Topo Maps: 7.5 Minute Series (Topographic)
50
1990 Census County Block Map
45
2000 Census County Block Map
45
2010 Census County Block Map
42
2010 Census P.L. 94-171 County Block Map
42
7.5 Minute Series (Topographic)
35
Digital Raster Graphic Topographic Maps: 7.5 Minute Series (Topographic)
25
2007 Economic Census Map
11
15 Minute Series (Topographic)
7
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413 Matching Results
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409 - 413 of
413
Evaluating the Ground-Water Resources of the High Plains of Texas: Volume 4
Fourth volume of a report documenting a study to map the High Plains aquifer and obtain data about various measurements and aspects of the aquifer. This volume provides "supporting basic data including records of wells and county maps depicting well locations, elevation of base of aquifer, elevation of water levels in 1980, and saturated thicknesses in 1980" for the southern third of the study area.
Date:
December 1984
Creator:
Knowles, Tommy; Nordstrom, Phillip & Klemt, William B.
Object Type:
Report
System:
The Portal to Texas History
Evaluating the Ground Water Resources of the High Plains of Texas: Volume 1
First volume of a report documenting a study to map the High Plains aquifer and obtain data about various measurements and aspects of the aquifer. This volume provides "interpretive information presented as text and related tables and regional figures."
Date:
May 1984
Creator:
Knowles, Tommy; Nordstrom, Phillip & Klemt, William B.
Object Type:
Report
System:
The Portal to Texas History
Check-Valve
Patent for improved check values in relation to a boiler of locomotives, to better secure priming and increase forcing power of its injector.
Date:
July 29, 1919
Creator:
Deinert, Hans Gustav Joachim
Object Type:
Patent
System:
The Portal to Texas History
Grain-Heading Machine.
Patent for a grain-heading machine for "gathering broom corn, sorghum, maize and the like" (lines 12-13).
Date:
November 26, 1918
Creator:
Davidson, Rufus Burley
Object Type:
Patent
System:
The Portal to Texas History
Planter Attachment
Patent for a planter attachment which opens a groove in soil for seeds then closes said groove.
Date:
December 31, 1918
Creator:
Driffice, George D.
Object Type:
Patent
System:
The Portal to Texas History